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2f1d9bdd MM |
1 | # This testcase is part of GDB, the GNU debugger. |
2 | # | |
ecd75fc8 | 3 | # Copyright 2013-2014 Free Software Foundation, Inc. |
2f1d9bdd MM |
4 | # |
5 | # Contributed by Intel Corp. <christian.himpel@intel.com> | |
6 | # | |
7 | # This program is free software; you can redistribute it and/or modify | |
8 | # it under the terms of the GNU General Public License as published by | |
9 | # the Free Software Foundation; either version 3 of the License, or | |
10 | # (at your option) any later version. | |
11 | # | |
12 | # This program is distributed in the hope that it will be useful, | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | # GNU General Public License for more details. | |
16 | # | |
17 | # You should have received a copy of the GNU General Public License | |
18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | ||
20 | # check for btrace support | |
21 | if { [skip_btrace_tests] } { return -1 } | |
22 | ||
23 | # compile and run to main | |
24 | standard_testfile .c .S | |
25 | if [prepare_for_testing $testfile.exp $testfile "$srcfile $srcfile2" {debug}] { | |
26 | return -1 | |
27 | } | |
28 | if ![runto_main] { | |
29 | return -1 | |
30 | } | |
31 | ||
32 | # set bp before loop and continue | |
33 | set bp_location [gdb_get_line_number "bp.1" $srcfile2] | |
34 | gdb_breakpoint $srcfile2:$bp_location | |
35 | gdb_continue_to_breakpoint "cont to $bp_location" ".*$srcfile2:$bp_location.*" | |
36 | ||
37 | # start btrace | |
38 | gdb_test_no_output "record btrace" | |
39 | ||
40 | # set bp after loop and continue | |
41 | set bp_location [gdb_get_line_number "bp.2" $srcfile2] | |
42 | gdb_breakpoint $srcfile2:$bp_location | |
43 | gdb_continue_to_breakpoint "cont to $bp_location" ".*$srcfile2:$bp_location.*" | |
44 | ||
45 | # The following test cases test if "browsing" through the | |
46 | # instruction history works as expected. So for the tests | |
47 | # it is necessary to count the number of lines that are | |
48 | # shown by the "record instruction-history" command. | |
49 | ||
50 | set testname "determine number of recorded instructions" | |
51 | gdb_test_multiple "info record" $testname { | |
52 | -re "Active record target: record-btrace\r\nRecorded \(\[0-9\]*\) instructions in \(\[0-9\]*\) functions for thread 1 .*\\.\r\n$gdb_prompt $" { | |
53 | set traced $expect_out(1,string) | |
54 | set traced_functions $expect_out(2,string) | |
55 | pass $testname | |
56 | } | |
57 | } | |
58 | ||
59 | # we have exactly 7 instructions here | |
60 | set message "exactly 7 instructions" | |
61 | if { $traced != 7 } { | |
62 | fail $message | |
63 | } else { | |
64 | pass $message | |
65 | } | |
66 | ||
67 | # test that we see the expected instructions | |
68 | gdb_test "record instruction-history 1,6" " | |
69 | 1\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r | |
70 | 2\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tdec %eax\r | |
71 | 3\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r | |
72 | 4\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tcmp \\\$0x0,%eax\r | |
73 | 5\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" | |
74 | ||
75 | gdb_test "record instruction-history /f 1,+5" " | |
76 | 1\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r | |
77 | 2\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tdec %eax\r | |
78 | 3\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r | |
79 | 4\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tcmp \\\$0x0,%eax\r | |
80 | 5\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" | |
81 | ||
82 | gdb_test "record instruction-history /p 6,-5" " | |
83 | 1\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r | |
84 | 2\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tdec %eax\r | |
85 | 3\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r | |
86 | 4\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tcmp \\\$0x0,%eax\r | |
87 | 5\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" | |
88 | ||
89 | gdb_test "record instruction-history /pf 1,6" " | |
90 | 1\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r | |
91 | 2\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tdec %eax\r | |
92 | 3\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r | |
93 | 4\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tcmp \\\$0x0,%eax\r | |
94 | 5\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" | |
95 | ||
96 | # the following tests are checking the iterators | |
97 | # to avoid lots of regexps, we just check the number of lines that | |
98 | # were printed during command execution. | |
99 | ||
100 | # test_lines_output returns the output lines from command as a list. | |
101 | proc test_lines_output { command message } { | |
102 | global gdb_prompt | |
103 | set message "test_lines_output: $message" | |
104 | gdb_test_multiple $command $message { | |
105 | -re "\n\(.*\)\r\n$gdb_prompt $" { | |
106 | return [split [string trim $expect_out(1,string)] "\n"] | |
107 | } | |
108 | } | |
109 | } | |
110 | ||
111 | # test_lines_length returns the number of lines from command. | |
112 | proc test_lines_length { command message } { | |
113 | return [llength [test_lines_output $command $message]] | |
114 | } | |
115 | ||
116 | # show instruction history with unlimited size, we expect to see | |
117 | # all $traced instructions | |
118 | gdb_test_no_output "set record instruction-history-size 0" | |
119 | set message "record instruction-history - unlimited" | |
120 | set lines [test_lines_length "record instruction-history 0" $message] | |
121 | if { $traced != $lines } { | |
122 | fail $message | |
123 | } else { | |
124 | pass $message | |
125 | } | |
126 | ||
127 | gdb_test_no_output "set record instruction-history-size $traced" | |
128 | set message "record instruction-history - traced" | |
129 | set lines [test_lines_length "record instruction-history 0" $message] | |
130 | if { $traced != $lines } { | |
131 | fail $message | |
132 | } else { | |
133 | pass $message | |
134 | } | |
135 | ||
136 | # test that the iterator works | |
137 | set history_size 3 | |
138 | gdb_test_no_output "set record instruction-history-size $history_size" | |
139 | set message "browse history forward start" | |
140 | set lines [test_lines_length "record instruction-history 0" $message] | |
141 | if { $lines != $history_size } { | |
142 | fail $message | |
143 | } else { | |
144 | pass $message | |
145 | } | |
146 | ||
147 | set message "browse history forward middle" | |
148 | set lines [test_lines_length "record instruction-history +" $message] | |
149 | if { $lines != $history_size } { | |
150 | fail $message | |
151 | } else { | |
152 | pass $message | |
153 | } | |
154 | ||
155 | set message "browse history forward last" | |
156 | set lines [test_lines_length "record instruction-history +" $message] | |
157 | if { $lines != 1 } { | |
158 | fail $message | |
159 | } else { | |
160 | pass $message | |
161 | } | |
162 | ||
163 | gdb_test "record instruction-history" "At the end of the branch trace record\\." "browse history forward beyond 1" | |
164 | ||
165 | # make sure we cannot move further | |
166 | gdb_test "record instruction-history" "At the end of the branch trace record\\." "browse history forward beyond 2" | |
167 | ||
168 | set message "browse history backward last" | |
169 | set lines [test_lines_length "record instruction-history -" $message] | |
170 | if { $lines != $history_size } { | |
171 | fail $message | |
172 | } else { | |
173 | pass $message | |
174 | } | |
175 | ||
176 | set message "browse history backward middle" | |
177 | set lines [test_lines_length "record instruction-history -" $message] | |
178 | if { $lines != $history_size } { | |
179 | fail $message | |
180 | } else { | |
181 | pass $message | |
182 | } | |
183 | ||
184 | set message "browse history backward first" | |
185 | set lines [test_lines_length "record instruction-history -" $message] | |
186 | if { $lines != 1 } { | |
187 | fail $message | |
188 | } else { | |
189 | pass $message | |
190 | } | |
191 | ||
192 | gdb_test "record instruction-history -" "At the start of the branch trace record\\." "browse history backward beyond 1" | |
193 | ||
194 | # make sure we cannot move further back | |
195 | gdb_test "record instruction-history -" "At the start of the branch trace record\\." "browse history backward beyond 2" |